Structural validity of the Brazilian version of the Western Ontario and McMaster Universities Osteoarthritis Index among patients with knee osteoarthritis.
Cheila de Sousa Bacelar FerreiraAlmir Vieira Dibai FilhoDavi Oliveira da Silva AlmeidaDaniela Bassi DibaiFelipe Souza BarretoAdriano Rodrigues de OliveiraCid André Fidelis de Paula GomesPublished in: Sao Paulo medical journal = Revista paulista de medicina (2021)
The Brazilian version of WOMAC with two domains, i.e. "pain" (four items) and "physical function" (eight items), presents the best structure.